a^{v1}_{a0} b^{c0}_{a2} c^{a3,v0}_{a1,v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)
-a^{v1}_{a2} b^{c0}_{a0} c^{a3,v0}_{a1,v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)